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1.发明公开公开(公告)号：US20240288359A1
公开(公告)日：2024-08-29
申请号：US18543861
申请日：2023-12-18
申请人： Chongqing University , State Grid Chongqing Electric power Research Institute , Shandong Taikai Transformer Co., Ltd. , Optosky (Xiamen) Optical Ltd
发明人： Fu Wan , Weigen Chen , Zhiyi Luo , Yingkai Long , Pinyi Wang , Lin Du , Qiuxia Sun , Quan Zhou , Youyuan Wang , Hongfei Liu
CPC分类号： G01N21/1702 , G01N33/2841 , G01R31/1218 , G01R31/1281 , G01N2021/1704 , G01N2201/06113
摘要： The present disclosure relates to a simultaneous detection method and system for dissolved gas and partial discharge in insulating oil, and belongs to the field of electrical devices. The method includes the steps: freely diffusing the dissolved gas in the insulating oil to an F-P optical fiber interference cavity through an oil-gas separation membrane; coupling pump light and probe light into the F-P optical fiber interference cavity through a frequency division multiplexer; making, by an optoacoustic effect of the dissolved gas stimulated by the pump light and an ultrasonic wave generated by the partial discharge, the oil-gas separation membrane vibrate; detecting, by the probe light, vibration of the oil-gas separation membrane, which changes a cavity length, wherein when the probe light is reflected by the oil-gas separation membrane, an interference signal is generated due to the change of the cavity length.
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公开(公告)号：US11837862B2
公开(公告)日：2023-12-05
申请号：US17066770
申请日：2020-10-09
CPC分类号： H02H1/0023 , G01R31/1218 , G02B6/262 , G02B19/0009 , G02B19/0076 , H02H3/08
摘要： An arc-flash sensor may provide flexibilities for supporting both surface mounting and peek-through mounting on a panel (e.g., a wall panel or an electrical panel). The arc-flash sensor includes a translucent optical lens, a fiber-optic cable, and a skirt around the back side of the optical lens. The translucent optical lens diffuses the light produced in an arc flash to enhance the detectability of light signals picked by the fiber-optic cable. The fiber-optic cable enters parallel to the panel and perpendicular to principal axis of the optical lens. The parallel fiber-optic cable configuration reduces sensor installation space occupied and potential damage to the sensor. The skirt is used to prevent false tripping caused by unexpected events on the fiber-optic cable side such as camera flashes, lightning, sunlight, or the like.
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公开(公告)号：US11808800B2
公开(公告)日：2023-11-07
申请号：US17990405
申请日：2022-11-18
发明人： Julia Napolin Tilles
CPC分类号： G01R31/1218 , G01R29/12
摘要： An interferometric radioimager provides real-time, high-fidelity radioimaging of high voltage breakdown (HVB) both internal and external to electrical components at sub-nanosecond and sub-millimeter resolution and has an ability to resolve multiple/spatially-extensive HVB simultaneously. Therefore, radioimaging can be used to screen for early life weakness/failure and enable non-destructive screening of defective electrical components. In particular, radioimaging can detect precursors to catastrophic HVB, allowing for early detection of weakness in critical electrical components. Radioimaging can also be used to track HVB and pinpoint defects in electrical components real time, including transformers, capacitors, cables, switches, and microelectronics.
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公开(公告)号：US20230213570A1
公开(公告)日：2023-07-06
申请号：US17567538
申请日：2022-01-03
发明人： Jacob N. Chamoun , Peter Kiesel , Saman Mostafavi , Qiushu Chen
CPC分类号： G01R31/1218 , G02B6/4286
摘要： A system for evaluating a high voltage asset (HV asset) comprises a PD detector disposed in the HV asset. The PD detector comprises an electrical coupler configured to couple electrical disturbances indicative of a partial discharge from a high voltage conductor of the HV asset to an electrical-to-optical converter. The electrical-to-optical converter comprises a light emitter, and is configured to convert the electrical disturbances to a light signal. An optical power receiver is disposed in the high voltage asset and coupled to the PD detector. The optical power receiver is configured to receive optical power from an external optical power source via a non-conducting optical fiber arrangement. The electrical-to-optical converter is configured to communicate the light signal indicative of the partial discharge to an electronic device external of high voltage asset via the non-conducting optical fiber arrangement.
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公开(公告)号：US20230152362A1
公开(公告)日：2023-05-18
申请号：US17990405
申请日：2022-11-18
发明人： Julia Napolin Tilles
CPC分类号： G01R31/1218 , G01R29/12
摘要： An interferometric radioimager provides real-time, high-fidelity radioimaging of high voltage breakdown (HVB) both internal and external to electrical components at sub-nanosecond and sub-millimeter resolution and has an ability to resolve multiple/spatially-extensive HVB simultaneously. Therefore, radioimaging can be used to screen for early life weakness/failure and enable non-destructive screening of defective electrical components. In particular, radioimaging can detect precursors to catastrophic HVB, allowing for early detection of weakness in critical electrical components. Radioimaging can also be used to track HVB and pinpoint defects in electrical components real time, including transformers, capacitors, cables, switches, and microelectronics.
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公开(公告)号：US20190041449A1
公开(公告)日：2019-02-07
申请号：US16152715
申请日：2018-10-05
申请人： The Boeing Company
发明人： Dejan Nikic , Arthur C. Day
CPC分类号： G01R31/1218 , G01N27/60 , G01N27/61 , G01R15/165 , G01R29/24 , G01R31/16
摘要： Propagating brush discharge testing systems include an initiation electrode, a high-voltage switch, a sensor, and a controller. The initiation electrode has an exposed tip positioned adjacent to a surface of a test article. The high-voltage switch is configured to selectively isolate the initiation electrode from ground potential. The sensor is positioned and configured to detect a propagating brush discharge between the initiation electrode and the test article. The controller is programmed to operate the high-voltage switch to ground the initiation electrode.
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公开(公告)号：US20180212416A1
公开(公告)日：2018-07-26
申请号：US15745544
申请日：2016-05-23
发明人： Stefan LECHELER
IPC分类号： H02H1/00 , H02H7/22 , G01N21/67 , G01R31/12 , G01R31/327
CPC分类号： H02H1/0023 , G01N21/67 , G01R31/1218 , G01R31/3275 , H01H33/26 , H02B13/065 , H02H7/22 , H02H7/222
摘要： Disclosed is a device for recognizing an arcing fault in incident light, comprising a sensor for detecting absorption lines of the incident light, and an evaluation unit which generates an evaluation signal then characteristic absorption lines are detected.
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公开(公告)号：US09829531B2
公开(公告)日：2017-11-28
申请号：US14935736
申请日：2015-11-09
发明人： Roberto Alini , Larry Barnes , Baris Posat , Gene Svoboda
IPC分类号： G01R31/12
CPC分类号： G01R31/1263 , G01R31/1218 , H01L2224/48137
摘要： A system includes a first galvanic isolator, a second galvanic isolator, a sensor, and a monitoring module. The first galvanic isolator includes a first electrical insulator. The second galvanic isolator is connected in series with the first galvanic isolator and includes a second electrical insulator. The sensor generates a first output signal based on an electrical characteristic of one of the first and second electrical insulators. The monitoring module, based on the first output signal, selectively generates a signal indicative of a failure of at least one of the first and second electrical insulators.
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公开(公告)号：US20170115336A1
公开(公告)日：2017-04-27
申请号：US14935736
申请日：2015-11-09
发明人： Roberto ALINI , Larry BARNES , Baris POSAT , Gene SVOBODA
IPC分类号： G01R31/12
CPC分类号： G01R31/1263 , G01R31/1218 , H01L2224/48137
摘要： A system includes a first galvanic isolator, a second galvanic isolator, a sensor, and a monitoring module. The first galvanic isolator includes a first electrical insulator. The second galvanic isolator is connected in series with the first galvanic isolator and includes a second electrical insulator. The sensor generates a first output signal based on an electrical characteristic of one of the first and second electrical insulators. The monitoring module, based on the first output signal, selectively generates a signal indicative of a failure of at least one of the first and second electrical insulators.
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公开(公告)号：US08786290B2
公开(公告)日：2014-07-22
申请号：US13314880
申请日：2011-12-08
申请人： Richard Klenkler
发明人： Richard Klenkler
IPC分类号： G01N27/60
CPC分类号： G01R31/1218 , G01N27/126
摘要： The presently disclosed embodiments are directed to the detection and monitoring of corona effluent. The present embodiments pertain to a corona sensing device that employs a film of organic charge transporting material, as the active component in a corona effluent sensing device, that is disposed onto a patterned electrode bearing support member.
摘要翻译： 目前公开的实施例涉及电晕流出物的检测和监测。 本实施例涉及一种电晕感测装置，其使用有机电荷传输材料的膜作为电晕流出物检测装置中的活性组分，其被布置在图案化的电极轴承支撑构件上。
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